Phase change material pressure filling device

Abstract

The application relates to the technical field of phase change material filling, and discloses a phase change material air pressure filling device, which comprises a cavity to be filled and a liquid phase change material storage cavity, wherein: the cavity to be filled and the liquid phase change material storage cavity are communicated through a liquid guide pipe, and liquid phase change material in the liquid phase change material storage cavity is transported into the cavity to be filled through a driving unit. The application has the effect of facilitating phase change material filling.

Description

Technical Field

[0001] This application relates to the field of phase change material filling technology, and in particular to a phase change material pneumatic filling device. Background Technology

[0002] As microwave components continue to develop towards miniaturization and high power, their heat dissipation requirements are also increasing.

[0003] Currently, a common heat dissipation method utilizes solid phase change materials that undergo a phase change to a liquid state upon heating, thereby absorbing heat and cooling microwave components. This method typically involves placing a dedicated cavity on the component to store the phase change material.

[0004] However, at room temperature, phase change materials are solid and waxy. Even after being heated and melted, they are difficult to fill within a limited time using conventional filling methods through a small-diameter filling port (less than 5 mm in diameter). In addition, this process is prone to causing component contamination and material waste. Utility Model Content

[0005] To facilitate the filling of phase change materials, this application provides a pneumatic filling device for phase change materials.

[0006] The phase change material pneumatic filling device provided in this application adopts the following technical solution: A phase change material pneumatic filling device includes a filling chamber and a liquid phase change material storage chamber, wherein: The cavity to be filled and the liquid phase change material storage cavity are connected by a liquid guide pipe, and the liquid phase change material inside the liquid phase change material storage cavity is transported to the cavity to be filled by a drive unit.

[0007] Optionally, the filling tank cavity and the liquid phase change material storage cavity are connected to a heat transfer unit, and the heat transfer unit is connected to a heating unit.

[0008] Optionally, the heat transfer unit is provided with a groove, and the cavity to be filled is placed inside the groove.

[0009] Optionally, the heat transfer unit includes an L-shaped mounting base and a baffle, the baffle being detachably mounted on the mounting base.

[0010] Optionally, the distance between the baffle and the placement seat is adjustable.

[0011] Optionally, a screw rod passes through the baffle plate and is threadedly connected to the placement seat.

[0012] Optionally, the liquid phase change material storage cavity is provided with a feeding port on its cavity wall; A sealing plate is installed at the feeding port.

[0013] Optionally, the driving unit includes a gas guide pipe, the gas outlet of which is connected to the interior of the liquid phase change material storage cavity, and the gas guide pipe is connected to a high-pressure gas source.

[0014] Optionally, the inlet end of the liquid guide tube is located at the bottom of the liquid phase change material storage cavity, and the outlet end of the liquid guide tube is located at the top of the cavity to be filled.

[0015] Optionally, the liquid phase change material storage cavity is detachably and fixedly mounted on the heat transfer unit.

[0016] In summary, this application includes at least one of the following beneficial technical effects: 1. This device enhances the stability of the liquid phase change material (PCM) storage chamber by utilizing the weight of the heat transfer unit and the chamber to be filled, which is placed on the heat transfer unit. During the filling process, the stability of the liquid PCM storage chamber is crucial for ensuring the smooth and stable delivery of the PCM. This design effectively avoids problems such as poor PCM delivery or splashing caused by chamber shaking, ensuring that the PCM can be accurately and smoothly delivered from the liquid PCM storage chamber to the chamber to be filled through the liquid guide tube. 2. The grooves on the heat transfer unit can position the cavity to be filled, while the baffle is detachably mounted on the placement seat, and the distance between the baffle and the placement seat is adjustable. This structural design not only improves the convenience of placing the cavity to be filled, but also allows for adjustment according to different sizes of the cavity to be filled, ensuring it is stably placed in the groove. When filling with liquid phase change material, the stability of the cavity to be filled is guaranteed, reducing the risk of filling quality being affected or phase change material leakage due to cavity shaking, and improving the safety and reliability of the entire filling process. 3. The liquid phase change material (PCM) storage chamber has a feeding port on its wall, allowing for precise control of the PCM feeding amount by quantitatively adding solid PCM into the storage chamber. Simultaneously, the heating unit heats and maintains the temperature of the PCM inside both the chamber to be filled and the liquid PCM storage chamber, keeping the PCM in a liquid state for an extended period. This prevents the PCM from solidifying due to excessively low temperatures, which could affect transport. This combination of precise feeding and efficient heating and insulation not only ensures smooth filling of the PCM but also improves the efficiency and quality of the entire filling process, reducing waste and operational errors that may result from the unstable state of the PCM. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application.

[0018] Figure 2This is a schematic diagram illustrating the structure of the liquid guiding tube in the embodiments of this application.

[0019] Figure 3 This is a schematic diagram illustrating the relative positions of the liquid phase change material storage cavity and the placement seat in the embodiments of this application.

[0020] Explanation of reference numerals in the attached figures: 1. Filling chamber; 2. Liquid phase change material storage chamber; 21. Feed port; 22. Sealing plate; 23. Bolt; 3. Liquid guide pipe; 4. Drive unit; 5. Heat transfer unit; 51. Groove; 52. Placement seat; 53. Baffle; 54. Screw; 6. Heating unit. Detailed Implementation

[0021] The following is in conjunction with the appendix Figures 1-3 This application will be described in further detail.

[0022] This application discloses a phase change material pneumatic filling device.

[0023] A phase change material pneumatic filling device includes a filling chamber 1 and a liquid phase change material storage chamber 2. The filling chamber 1 and the liquid phase change material storage chamber 2 are connected by a liquid guide pipe 3, and the liquid phase change material inside the liquid phase change material storage chamber 2 is transported to the filling chamber 1 by a drive unit 4.

[0024] When it is necessary to place the phase change material inside the cavity to be filled 1, the phase change material to be filled is quantitatively placed in the liquid phase change material storage cavity 2. Then, the liquid phase change material in the liquid phase change material storage cavity 2 is transported to the cavity to be filled 1 through the liquid guide tube 3 by the drive unit 4, thereby completing the injection of phase change material into the cavity to be filled 1.

[0025] A heat transfer unit 5 is connected to the filling chamber 1 and the liquid phase change material storage chamber 2, and the heat transfer unit 5 is connected to a heating unit 6. The heating unit 6 heats and keeps the phase change material inside the filling chamber 1 and the liquid phase change material storage chamber 2 at a constant temperature, so that the phase change material inside the filling chamber 1 and the liquid phase change material storage chamber 2 remains in a liquid state for a long time. This facilitates the transport of the phase change material and reduces the possibility that the phase change material will turn into a solid state due to low temperature, which would affect the transport of the phase change material.

[0026] The heat transfer unit 5 has a groove 51, and the cavity to be filled 1 is placed inside the groove 51. The groove 51 positions the cavity to be filled 1, thereby improving the stability of the cavity to be filled 1 while making it convenient to place. The liquid phase change material storage cavity 2 is detachably fixedly installed on the heat transfer unit 5. After the cavity to be filled 1 is placed inside the groove 51, the liquid guide tube 3, which is pre-installed on the liquid phase change material storage cavity 2, is inserted into the cavity to be filled 1 from above. Then, the liquid phase change material storage cavity 2 is fixedly installed on the heat transfer unit 5 by bolts 23. The weight of the heat transfer unit 5 and the cavity to be filled 1 placed on the heat transfer unit 5 enhances the stability of the liquid phase change material storage cavity 2, thereby improving the stability of the liquid phase change material delivery.

[0027] The heat transfer unit 5 includes an L-shaped placement seat 52 and a baffle 53. The baffle 53 is detachably installed on the placement seat 52. There is a groove 51 between the baffle 53 and the placement seat 52. When placing the cavity to be filled 1, the cavity to be filled 1 is placed on the placement seat 52. Then, the baffle 53 is installed on the placement seat 52. The baffle 53 presses the cavity to be filled 1 tightly on the placement seat 52, reducing the shaking of the cavity to be filled 1 when filling the liquid phase change material.

[0028] The distance between the baffle 53 and the placement seat 52 is adjustable. A screw 54 passes through the baffle 53 and is threadedly connected to the placement seat 52. The distance between the baffle 53 and the placement seat 52 can be changed by adjusting the relative position between the screw 54 and the placement seat 52, thereby changing the size of the groove 51 to accommodate different sizes of filling cavities 1.

[0029] Heating unit 6 is a heating platform with an electric heating wire inside. The heating platform is heated by temperature control through the electric heating wire. Heat transfer unit 5 is made of thermally conductive metal material, such as copper or aluminum. Placement seat 52 is fixedly installed on the heating platform to improve the stability of placement seat 52.

[0030] The liquid phase change material storage chamber 2 has a feeding port 21 on its wall, and a sealing plate 22 is installed at the feeding port 21 by screws. Solid phase change material is quantitatively added into the liquid phase change material storage chamber 2, and then, during heating, the phase change material is transformed into a liquid phase change material. Adding solid phase change material facilitates precise feeding.

[0031] The drive unit 4 includes a gas guide pipe, the outlet of which is connected to the interior of the liquid phase change material storage chamber 2, and the gas guide pipe is connected to a high-pressure gas source. The liquid phase change material storage chamber 2 is sealed by a sealing plate 22 to reduce the risk of high-pressure gas leakage.

[0032] The inlet end of the liquid guide tube 3 is located at the bottom of the liquid phase change material storage cavity 2, and the outlet end of the liquid guide tube 3 is located at the top of the cavity to be filled 1.

[0033] After the phase change material inside the liquid phase change material storage chamber 2 changes from a solid to a liquid state, compressed gas is delivered into the liquid phase change material storage chamber 2 through a gas guide pipe. At this time, the high-pressure gas inside the liquid phase change material storage chamber 2 compresses the liquid phase change material inside the liquid phase change material storage chamber 2 in a downward direction, and delivers the liquid phase change material from the liquid guide pipe 3 to the filling chamber 1, thereby completing the filling of the phase change material. After the filling is completed, the liquid phase change material storage chamber 2 is removed and cleaned for future use, and the opening of the filling chamber 1 for the liquid guide pipe 3 to be inserted is sealed.

[0034] The implementation principle of the phase change material pneumatic filling device according to this application embodiment is as follows: When it is necessary to place the phase change material into the filling chamber 1, the solid phase change material is quantitatively added into the liquid phase change material storage chamber 2. Then, the heating unit 6 heats and keeps the liquid phase change material storage chamber 2 and the filling chamber 1 at a certain temperature, so that the phase change material is transformed into a liquid phase change material and remains in a liquid state for a long time to facilitate transportation. Next, high-pressure gas is delivered to the liquid phase change material storage chamber 2 through the gas guide tube of the drive unit 4. The high-pressure gas is used to squeeze the liquid phase change material in the liquid phase change material storage chamber 2 in a downward direction, so that it is transported from the liquid guide tube 3 into the filling chamber 1, completing the filling of the phase change material. After filling, the liquid phase change material storage chamber 2 is removed and cleaned for the next use, and the opening of the filling chamber 1 for the liquid guide tube 3 to be inserted is sealed.

[0035] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A phase change material gas pressure filling device characterized by: Includes a cavity to be filled and a liquid phase change material storage cavity, wherein: The cavity to be filled and the liquid phase change material storage cavity are connected by a liquid guide pipe, and the liquid phase change material inside the liquid phase change material storage cavity is transported to the cavity to be filled by a drive unit.

2. The phase change material pneumatic filling device according to claim 1, characterized in that: The cavity to be filled and the liquid phase change material storage cavity are connected to a heat transfer unit, and the heat transfer unit is connected to a heating unit.

3. The phase change material pneumatic filling device according to claim 2, characterized in that: The heat transfer unit is provided with a groove, and the cavity to be filled is placed inside the groove.

4. The phase change material pneumatic filling device according to claim 3, characterized in that: The heat transfer unit includes an L-shaped base and a baffle, the baffle being detachably mounted on the base.

5. The phase change material pneumatic filling device according to claim 4, characterized in that: The distance between the baffle and the placement seat is adjustable.

6. The phase change material pneumatic filling device according to claim 4, characterized in that: A screw rod passes through the baffle and is threadedly connected to the placement seat.

7. The phase change material pneumatic filling device according to claim 1, characterized in that: The liquid phase change material storage chamber has a feeding port on its cavity wall; A sealing plate is installed at the feeding port.

8. The phase change material pneumatic filling device according to claim 1, characterized in that: The drive unit includes a gas guide pipe, the gas outlet of which is connected to the interior of the liquid phase change material storage cavity, and the gas guide pipe is connected to a high-pressure gas source.

9. The phase change material pneumatic filling device according to claim 1, characterized in that: The inlet end of the liquid guide tube is located at the bottom of the liquid phase change material storage cavity, and the outlet end of the liquid guide tube is located at the top of the cavity to be filled.

10. The phase change material pneumatic filling device according to claim 2, characterized in that: The liquid phase change material storage cavity is detachably and fixedly mounted on the heat transfer unit.

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